Babies who drank ByHeart formula got sick months before botulism outbreak, parents say

Sunday, November 23, 2025 -Parents are raising concerns that their babies became ill months before the reported botulism outbreak linked to ByHeart infant formula. 

Several families reported symptoms such as vomiting, lethargy, and feeding difficulties in their children, suggesting that problems with the formula may have started earlier than initially reported.

Health authorities are investigating the claims and reviewing records to determine the scope and timeline of the illnesses. ByHeart has stated that it is cooperating fully with regulators to ensure the safety of its products.

The revelations have intensified scrutiny on infant formula safety and prompted calls from parents and advocacy groups for stricter monitoring and faster responses to potential contamination.